Skip to main content
SpringerLink
Log in

Dynamic-stress concentration using photoelasticity and a laser light source

A modulated-output ruby-laser system is described and tested in the determination of dynamic-stress-concentration factors for a strut with a symmetrically located circular discontinuity

  • Published:
Experimental Mechanics Aims and scope Submit manuscript

Abstract

Since experimental techniques using dynamic photoelasticity are, in general, limited by suitably intense monochromatic light sources, it was of primary importance to describe a ruby-laser system which would completely remove this particular aspect of the problem. Modulation of the system, in this case by a Kerr cell, provides the necessary control of the light output such that a complete series of results can be obtained by putting together the results of many individual tests recorded on a conventional still camera. In this case, the dynamic-stress-concentration factor in a strut with a symmetrically located circular discontinuity was determined to establish definitely the potential of the system.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Lengyel, B. A., “Lasers,”John Wiley and Sons, New York, 1st ed (1963).

    Google Scholar 

  2. Troup, G., “Masers and Lasers,”John Wiley and Sons, New York, 2nd ed. (1963).

    Google Scholar 

  3. Brotherton, M., “Masers and Lasers,”McGraw-Hill, New York, 1st ed. (1964).

    Google Scholar 

  4. Taylor, C. E., Bowman, C. E., North, W. P. T., andSwinson, W. F., “Applications of Lasers to Photoelasticity,”Experimental Mechanics,6 (6),289–296 (1966).

    Google Scholar 

  5. Fourney, M. E., “On the Application of a Laser to High Speed Photography,”Thesis—California Institute of Technology, Pasadena, Calif., 1963.

    Google Scholar 

  6. Howland, R. C., Trans. Royal Soc. (London) Series A,229,49 (1930).

    MATH  Google Scholar 

  7. Dally, J. W., Halblieb, W. F., “Dynamic Stress Concentrations at Circular Holes in Struts,” Jnl. Mech. Engrg. Sci. (March 1965).

  8. Jones, O. E., and Ellis, A. T., “Longitudinal Strain Pulse Propagation in Wide Rectangular Bars,” Jnl. Appl. Mech., 61–69 (March 1963).

  9. Pao, Y., “Dynamic Stress Concentration in an Elastic Plate,”Jnl. Appl. Mech., Series E,29,299–305 (1962).

    MATH  Google Scholar 

  10. Christie, D. G., “Reflection of Elastic Waves from a Free Boundary,”Philosophical Mag.,46,527–541 (1955).

    MathSciNet  Google Scholar 

  11. North, W. P. T., “A Laser Light Source in Dynamic Photoelasticity,”Thesis—University of Illinois, Dept. Theoretical and Appl. Mech., Urbana, Ill. (1965).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Mechanical Engineering Department, University of Windsor, Windsor, Ontario

    W. P. T. North (Assistant Professor)

  2. Theoretical and Applied Mechanics, University of Illinois, Urbana, Ill.

    C. E. Taylor (Professor)

Authors
  1. W. P. T. North
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. C. E. Taylor
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

This paper is based on a part of the PhD thesis, Theoretical and Applied Mechanics Department, University of Illinois, Urbana, Ill.

Rights and permissions

Reprints and permissions

About this article

Cite this article

North, W.P.T., Taylor, C.E. Dynamic-stress concentration using photoelasticity and a laser light source. Experimental Mechanics 6, 337–341 (1966). https://doi.org/10.1007/BF02327209

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02327209

Keywords

Search

Navigation